treewide: change inode->i_ino from unsigned long to u64

On 32-bit architectures, unsigned long is only 32 bits wide, which
causes 64-bit inode numbers to be silently truncated. Several
filesystems (NFS, XFS, BTRFS, etc.) can generate inode numbers that
exceed 32 bits, and this truncation can lead to inode number collisions
and other subtle bugs on 32-bit systems.

Change the type of inode->i_ino from unsigned long to u64 to ensure that
inode numbers are always represented as 64-bit values regardless of
architecture. Update all format specifiers treewide from %lu/%lx to
%llu/%llx to match the new type, along with corresponding local variable
types.

This is the bulk treewide conversion. Earlier patches in this series
handled trace events separately to allow trace field reordering for
better struct packing on 32-bit.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260304-iino-u64-v3-12-2257ad83d372@kernel.org
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>

1 files changed, 7 insertions, 7 deletions

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 1f6bc05593df..f846fcb7db24 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -119,7 +119,7 @@ int ext4_get_max_inline_size(struct inode *inode)
 	error = ext4_get_inode_loc(inode, &iloc);
 	if (error) {
 		ext4_error_inode_err(inode, __func__, __LINE__, 0, -error,
-				     "can't get inode location %lu",
+				     "can't get inode location %llu",
 				     inode->i_ino);
 		return 0;
 	}
@@ -512,7 +512,7 @@ static int ext4_read_inline_folio(struct inode *inode, struct folio *folio)
 	BUG_ON(folio->index);
 
 	if (!EXT4_I(inode)->i_inline_off) {
-		ext4_warning(inode->i_sb, "inode %lu doesn't have inline data.",
+		ext4_warning(inode->i_sb, "inode %llu doesn't have inline data.",
 			     inode->i_ino);
 		goto out;
 	}
@@ -934,7 +934,7 @@ void ext4_show_inline_dir(struct inode *dir, struct buffer_head *bh,
 	struct ext4_dir_entry_2 *de = inline_start;
 	void *dlimit = inline_start + inline_size;
 
-	trace_printk("inode %lu\n", dir->i_ino);
+	trace_printk("inode %llu\n", dir->i_ino);
 	offset = 0;
 	while ((void *)de < dlimit) {
 		de_len = ext4_rec_len_from_disk(de->rec_len, inline_size);
@@ -1071,7 +1071,7 @@ static void ext4_restore_inline_data(handle_t *handle, struct inode *inode,
 	ret = ext4_create_inline_data(handle, inode, inline_size);
 	if (ret) {
 		ext4_msg(inode->i_sb, KERN_EMERG,
-			"error restoring inline_data for inode -- potential data loss! (inode %lu, error %d)",
+			"error restoring inline_data for inode -- potential data loss! (inode %llu, error %d)",
 			inode->i_ino, ret);
 		return;
 	}
@@ -1740,7 +1740,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
 	err = ext4_get_inode_loc(dir, &iloc);
 	if (err) {
 		EXT4_ERROR_INODE_ERR(dir, -err,
-				     "error %d getting inode %lu block",
+				     "error %d getting inode %llu block",
 				     err, dir->i_ino);
 		return false;
 	}
@@ -1755,7 +1755,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
 	de = (struct ext4_dir_entry_2 *)ext4_raw_inode(&iloc)->i_block;
 	if (!le32_to_cpu(de->inode)) {
 		ext4_warning(dir->i_sb,
-			     "bad inline directory (dir #%lu) - no `..'",
+			     "bad inline directory (dir #%llu) - no `..'",
 			     dir->i_ino);
 		goto out;
 	}
@@ -1769,7 +1769,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
 					 iloc.bh, inline_pos,
 					 inline_size, offset)) {
 			ext4_warning(dir->i_sb,
-				     "bad inline directory (dir #%lu) - "
+				     "bad inline directory (dir #%llu) - "
 				     "inode %u, rec_len %u, name_len %d"
 				     "inline size %d",
 				     dir->i_ino, le32_to_cpu(de->inode),